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What Is a Debit Card and How Does It Work?

September 9th, 2026 [Updated September 10th, 2026]
 Niki Giovanis

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Niki Giovanis

What Is a Debit Card and How Does It Work?

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a safe, rewarding, and budget-friendly way to spend.

A debit card is a payment card connected directly to your bank account. When you use it to make a purchase or withdraw cash, the money generally comes from your available balance.

Unlike a credit card, you are usually spending money you already have rather than borrowing from a lender.

KOHO Prepaid Mastercard

KOHO Prepaid Mastercard is a credit card alternative that lets you spend money you already have.

With KOHO Prepaid Mastercard, you can:

  • Get instant approval with no credit check

  • Spend only the money you load onto your account

  • Pay no interest on your purchases

  • Earn up to 2% cash back

  • Use your card for in-store purchases, online shopping, and recurring payments

How Does a Debit Card Work?

Your debit card is linked to an account containing your money.

When you make a purchase:

  1. You tap, insert or enter your card information.

  2. The transaction is authorized.

  3. The purchase amount is taken from your available funds.

  4. The transaction appears in your account activity.

If you do not have enough money available, the transaction may be declined unless your account has overdraft protection.

What Can You Use a Debit Card For?

A debit card can commonly be used for:

  • In-store purchases

  • ATM withdrawals

  • Online purchases on eligible cards

  • Contactless payments

  • Bill payments

  • Digital wallet payments

The features available depend on your card and financial institution.

Debit Card vs. Credit Card

The main difference is where the money comes from.

With a debit card, you generally spend money already in your account.

With a credit card, you borrow money from the card issuer and repay it later.

Credit cards can charge interest if you carry a balance. Debit card purchases do not create a credit card balance.

Debit Card vs. Prepaid Card

Debit and prepaid cards both let you spend your own money, but they work differently.

A debit card is connected directly to a bank account.

A prepaid card has a balance that you load with money before spending.

Some prepaid cards also operate through networks such as Mastercard or Visa, which can make them useful for online and in-store purchases.

Can You Withdraw Cash With a Debit Card?

Yes.

You can usually use your debit card at an ATM to:

  • Withdraw cash

  • Check your balance

  • Make certain deposits

  • Complete other banking transactions

Fees may apply if you use an ATM outside your financial institution's network.

Does Using a Debit Card Build Credit?

Usually not.

Debit card purchases use your own money and are not normally reported to the credit bureaus.

If your goal is to build credit, you generally need a credit product that reports your payment history.

Is a Debit Card Safe?

Debit cards usually include security features such as:

  • A PIN

  • Transaction monitoring

  • Contactless payment limits

  • Card-locking features

  • Fraud protection

Protect your PIN and card information. Contact your financial institution immediately if your card is lost, stolen or used without your permission.

Is a Debit Card Better Than a Credit Card?

It depends on what you need.

A debit card can be useful if you want to:

  • Spend only money you already have

  • Avoid credit card debt

  • Withdraw cash easily

  • Manage everyday spending

A credit card may offer advantages such as credit building, rewards and additional purchase protections.

For everyday spending, a debit card provides a simple way to access money already in your account without borrowing.

Note: KOHO product information and/or features may have been updated since this blog post was published. Please refer to our KOHO Plans page for our most up to date account information!

About the author

Niki is a communications specialist with years of experience as a freelance and marketing agency content writer. With a knack for storytelling, Niki enjoys working with businesses from diverse industries to craft engaging content that resonates with target audiences worldwide.

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